Neyite
A valid IMA mineral species
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About Neyite
Formula:
Ag2Cu6Pb25Bi26S68
Colour:
lead gray
Lustre:
Metallic
Hardness:
2½
Specific Gravity:
7.02
Crystal System:
Monoclinic
Name:
Named in honour of Charles Stuart Ney (1918-1975), Canadian exploration geologist. He was District Manager for Kennco Explorations (Western) Ltd. and later Quintana Minerals Corp. and was in charge of early exploration of the Lime Creek molybdenite deposit.
Unique Identifiers
Mindat ID:
2888
Long-form identifier:
mindat:1:1:2888:8
GUID
(UUID V4):
(UUID V4):
01a0cd93-6e0e-40d9-9400-08706645047e
IMA Classification of Neyite
Approved
First published:
1969
Classification of Neyite
2.JB.25i
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
3.5.1.1
3 : SULFOSALTS
5 : 2.5 < ø < 3
3 : SULFOSALTS
5 : 2.5 < ø < 3
5.7.42
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Ney | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Ney | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Neyite
Metallic
Transparency:
Opaque
Colour:
lead gray
Comment:
A characteristic yellow, and eventually Prussian blue tarnish is developed
Hardness:
2½ on Mohs scale
Tenacity:
Very brittle
Fracture:
Conchoidal
Density:
7.02 g/cm3 (Measured) 7.037 g/cm3 (Calculated)
Optical Data of Neyite
Anisotropism:
moderate: light grey, yellow-green, light reddish-brown to grey-black.
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 41.3% | 44.5% |
420nm | 41.6% | 44.8% |
440nm | 41.8% | 45.0% |
460nm | 42.1% | 45.2% |
480nm | 42.3% | 45.3% |
500nm | 42.4% | 45.0% |
520nm | 42.2% | 45.1% |
540nm | 41.9% | 44.8% |
560nm | 41.6% | 44.5% |
580nm | 41.4% | 44.4% |
600nm | 41.2% | 44.5% |
620nm | 41.0% | 44.6% |
640nm | 40.7% | 44.6% |
660nm | 40.4% | 44.5% |
680nm | 40.2% | 44.3% |
700nm | 39.9% | 44.1% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 45.3%.
R1 shown in black, R2 shown in red
Colour in reflected light:
galena-white
Chemistry of Neyite
Mindat Formula:
Ag2Cu6Pb25Bi26S68
Crystallography of Neyite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 37.527(6) Å, b = 4.0705(6) Å, c = 43.701(7) Å
β = 108.801(2)°
β = 108.801(2)°
Ratio:
a:b:c = 9.219 : 1 : 10.736
Unit Cell V:
6,319.31 ų (Calculated from Unit Cell)
Z:
4
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0005753 | Neyite | Makovicky E, Balic-Zunic T, Topa D (2001) The crystal structure of neyite, Ag2Cu6Pb25Bi26S68 The Canadian Mineralogist 39 1365-1376 | 2001 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.72 Å | (100) |
3.51 Å | (100) |
2.92 Å | (100) |
2.04 Å | (60) |
2.27 Å | (50) |
2.08 Å | (40) |
1.461 Å | (40) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Neyite
General Appearance of Type Material:
Intimately intergrown with quartz
Place of Conservation of Type Material:
Canadian Geological Survey, Ottawa, Canada, 68067.
National Museum of Natural History, Washington, D.C., USA, 142527.
National Museum of Natural History, Washington, D.C., USA, 142527.
Associated Minerals at Type Locality:
Reference:
Drummond, A.D., Trotter, J., Thompson, R.M. and Gower, J.A. (1969): Neyite, a new sulphosalt from Alice Arm, British Columbia. Canadian Mineralogist, 10, 90-96.
Synonyms of Neyite
Other Language Names for Neyite
Common Associates
Associated Minerals Based on Photo Data:
6 photos of Neyite associated with Quartz | SiO2 |
4 photos of Neyite associated with Feldspar Group | |
2 photos of Neyite associated with UM1988-05-S:AgBiCuHgPb | (Hg,Ag,Cu,Pb)5Pb5Bi11S27 |
2 photos of Neyite associated with Aikinite | PbCuBiS3 |
2 photos of Neyite associated with Pyrite | FeS2 |
Related Minerals - Strunz-mindat Grouping
2.JB. | Senandorite | AgPbSb3S6 |
2.JB. | Oscarkempffite | Ag10Pb4(Sb17Bi9)S48 |
2.JB. | Chukotkaite | AgPb7Sb5S15 |
2.JB. | Arsenquatrandorite | Ag17.6Pb12.8Sb38.1As11.5S96 |
2.JB. | Clino-oscarkempffite | Ag15Pb6Sb21Bi18S72 |
2.JB. | Andreadiniite | CuHgAg7Pb7Sb24S48 |
2.JB. | Ginelfite | Ag2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76 |
2.JB. | Lazerckerite | Ag3.75Pb4.50(Sb7.75Bi4)S24 |
2.JB. | Lasmanisite | Ag12Pb13Mn11Sb44S96 |
2.JB. | Montpelvouxite | AgPb16Sb27As18S84 |
2.JB. | Selenojunoite | Cu2Pb3Bi8Se16 |
2.JB.05 | Diaphorite | Ag3Pb2Sb3S8 |
2.JB.10 | Cosalite | Pb2Bi2S5 |
2.JB.15 | Freieslebenite | AgPbSbS3 |
2.JB.15 | Marrite | AgPbAsS3 |
2.JB.20 | Cannizzarite | Pb48Bi56S132 |
2.JB.20 | Wittite | Pb9Bi12(S,Se)27 |
2.JB.25a | Junoite | Cu2Pb3Bi8(S,Se)16 |
2.JB.25c | Nordströmite | CuPb3Bi7(Se4S10) |
2.JB.25g | Nuffieldite | Cu1.4Pb2.4Bi2.4Sb0.2S7 |
2.JB.25d | Proudite | CuPb7.5Bi9.33(S,Se)22 |
2.JB.25h | Weibullite | Pb5Bi8Se7S11 |
2.JB.25b | Felbertalite | Cu2Pb6Bi8S19 |
2.JB.25j | Rouxelite | Cu2HgPb23Sb27S65.5 |
2.JB.25f | Ángelaite | Cu2AgPbBiS4 |
2.JB.25i | Cuproneyite | Cu7Pb27Bi25S68 |
2.JB.30a | Geocronite | Pb14Sb6S23 |
2.JB.30a | Jordanite | Pb14As6S23 |
2.JB.30b | Kirkiite | Pb10Bi3As3S19 |
2.JB.30c | Tsugaruite | Pb28As15S50Cl |
2.JB.30a | Marcobaldiite | Pb12(Sb3As2Bi)Σ6S21 |
2.JB.30a | Arsenmarcobaldiite | Pb12(As3.2Sb2.8)Σ6S21 |
2.JB.35c | Pillaite | Pb9Sb10S23ClO0.5 |
2.JB.35a | Zinkenite | Pb9Sb22S42 |
2.JB.35b | Scainiite | Pb14Sb30S54O5 |
2.JB.35d | Pellouxite | (Cu,Ag)Pb10Sb12S27O(Cl,S)0.6 |
2.JB.35f | Tubulite | Ag2Pb22Sb20S53 |
2.JB.35e | Chovanite | Pb15-2xSb14+2xS36Ox (x ~ 0.2) |
2.JB.40b | Aschamalmite | Pb6-3xBi2+xS9 |
2.JB.40a | Bursaite | Pb5Bi4S11 (?) |
2.JB.40b | Eskimoite | Ag7Pb10Bi15S36 |
2.JB.40a | Fizélyite | Ag5Pb14Sb21S48 |
2.JB.40a | Gustavite | AgPbBi3S6 |
2.JB.40a | Lillianite | Pb3-2xAgxBi2+xS6 |
2.JB.40c | Ourayite | Ag3Pb4Bi5S13 |
2.JB.40a | Ramdohrite | Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24 |
2.JB.40a | Roshchinite | Ag19Pb10Sb51S96 |
2.JB.40d | Schirmerite | PbAgBi3S6 - Pb3Ag1.5Bi3.5S9 |
2.JB.40a | Treasurite | Ag7Pb6Bi15S32 |
2.JB.40a | Uchucchacuaite | AgMnPb3Sb5S12 |
2.JB.40e | Ustarasite | Pb(Bi,Sb)6S10 (?) |
2.JB.40a | Vikingite | Ag5Pb8Bi13S30 |
2.JB.40a | Xilingolite | Pb3Bi2S6 |
2.JB.40b | Heyrovskýite | Pb6Bi2S9 |
2.JB.40 | UM1988-05-S:AgBiCuHgPb | (Hg,Ag,Cu,Pb)5Pb5Bi11S27 |
2.JB.40 | UM1988-06-S:AgBiCuHgPb | (Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27 |
2.JB.40a | Quatrandorite | AgPbSb3S6 |
2.JB.40a | Menchettiite | AgPb2.40Mn1.60Sb3As2S12 |
2.JB.40a | Terrywallaceite | AgPb(Sb,Bi)3S6 |
2.JB.40a | Jasrouxite | Ag16Pb4(Sb24As16)S72 |
2.JB.40a | Erzwiesite | Ag8Pb12Bi16S40 |
2.JB.40a | Staročeskéite | Ag0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6 |
2.JB.40a | Oyonite | Ag3Mn2Pb4Sb7As4S24 |
2.JB.40a | Holubite | Ag3Pb6(Sb8Bi3)S24 |
2.JB.40b | Baiamareite | Ag4Pb12Fe4Sb20S48 |
2.JB.55 | Gratonite | Pb9As4S15 |
2.JB.60 | Marrucciite | Hg3Pb16Sb18S46 |
2.JB.65 | Vurroite | Pb20Sn2(Bi,As)22S54Cl6 |
2.JB.65 | Tazieffite | Pb20Cd2(As,Bi)22S50Cl10 |
2.JB.70 | Daliranite | PbHgAs2S5 |
Other Information
Notes:
HNO3 tarnishes black witi slight effervescence;HCl-develops a slight brown tarnish; KCN, FeCl, KOH-are all negative; HgCl2-develops a slight tarnish; and aqua regia-effervesces and stains dark
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Neyite
mindat.org URL:
https://www.mindat.org/min-2888.html
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References for Neyite
Localities for Neyite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Canada (TL) | |
| Can. Mineral. 10 (1969) +2 other references |
China | |
| Qiuming Chen (1990) |
Japan | |
| Yokoro et al. (2010) |
Portugal | |
| Gaspar +2 other references |
Romania | |
| Cristiana L. Ciobanu et al. (2016) |
USA | |
| www.excaliburmineral.com |
| Anthony et al. (1995) |
| Dan Evanich field collected. EDS ... |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Castor et al. (2004) |
| www.mindat.org (n.d.) +1 other reference |
| Castor et al. (2004) |
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British Columbia Molybdenum Ltd. Mine, Patsy Creek, Kitsault, Alice Arm, Skeena Mining Division, British Columbia, Canada